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A British Study Examined Whether the Type of Background Music

Question 27

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A British study examined whether the type of background music playing in a restaurant affected the amount of money that diners spent on their meals. The researchers asked a restaurant to alternate silence, popular music, and classical music on successive nights over eighteen days. Each type of music was played for 6 nights (the order was randomly determined to guard against confounding) . The type of music played and the amount spent on food and drinks (in British pounds) for each of 393 customers was recorded. The data are summarized below.
A British study examined whether the type of background music playing in a restaurant affected the amount of money that diners spent on their meals. The researchers asked a restaurant to alternate silence, popular music, and classical music on successive nights over eighteen days. Each type of music was played for 6 nights (the order was randomly determined to guard against confounding) . The type of music played and the amount spent on food and drinks (in British pounds) for each of 393 customers was recorded. The data are summarized below. -Which of the following validity conditions are met to conduct an ANOVA F-test on these data? Select all that apply. A) The standard deviations of the sample are approximately equal. B) The sample sizes are all at least 20. C) The sample distributions show no strong skewness. D) The sample means are all at least 20.
A British study examined whether the type of background music playing in a restaurant affected the amount of money that diners spent on their meals. The researchers asked a restaurant to alternate silence, popular music, and classical music on successive nights over eighteen days. Each type of music was played for 6 nights (the order was randomly determined to guard against confounding) . The type of music played and the amount spent on food and drinks (in British pounds) for each of 393 customers was recorded. The data are summarized below. -Which of the following validity conditions are met to conduct an ANOVA F-test on these data? Select all that apply. A) The standard deviations of the sample are approximately equal. B) The sample sizes are all at least 20. C) The sample distributions show no strong skewness. D) The sample means are all at least 20.
-Which of the following validity conditions are met to conduct an ANOVA F-test on these data? Select all that apply.


A) The standard deviations of the sample are approximately equal.
B) The sample sizes are all at least 20.
C) The sample distributions show no strong skewness.
D) The sample means are all at least 20.

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